Most screens are wider than they are tall, but I wouldn’t say there’s an excess of width. I use the width for multiple windows side by side, and I’m fine with having a “global” taskbar running horizontally and using a small portion of the height. MacOS and other operating systems cleverly have a global top bar that changes depending on the focused application, which I like.
There's an excess of width if you aren't a pro user, who knows how to take advantage of it. Linux has tiling WMs, Windows has basic tiling functionality + someone out there made a hackish tiling WM in AutoHotkey of all things[0]. But you're unlikely to discover this as a regular user, unless someone shows it to you.
